NASA Ames Update to Restoration Advisory Board

Simon, R.T. (2017, November). Focusing a Mineral Spirit LNAPL Investigation Towards Remedial Design Using UVOST™ Combined with Traditional Sampling to Assess 3-D Distribution. Paper presented at the RE3 Conference, Philadelphia, PA.

Presentation to Moffett Field Restoration Advisory Board: Five-Year Review Report for Sites 1, 22, 26 and 28 March 11, 2010 Wilson Doctor, Navy Project Manager

This document summarizes the 2010 Five-Year Review Reports for four CERCLA sites at the Former Naval Air Station Moffett Field in California. The sites include two landfills (Sites 1 and 22) and two groundwater treatment systems (Sites 26 and 28). The summary finds that the remedies for all four sites are currently effective in protecting human health and the environment, though some follow-up actions are needed, such as improving institutional controls and evaluating alternative treatment methods.

This presentation focuses on the development of a monitoring program for a large-scale sand filter at the Newington Solid Waste Facility. The program was designed to both determine the efficiency of this best management practice and provide insight on the maintenance needs of such a facility.

The document discusses tools for planning stormwater treatment in the Chesapeake Bay watershed. It introduces ALERT, a set of ArcGIS tools developed by AMEC to help communities plan stormwater projects, evaluate treatment scenarios, and estimate the cost of compliance with the Chesapeake Bay TMDL. The ALERT process uses land use data to calculate baseline pollutant loads, then models load reductions from potential stormwater BMPs and redevelopment projects. Non-spatial analysis further estimates remaining effort needed to achieve water quality goals. An example application in Alexandria, VA demonstrates the GIS analysis and output.

Fugro Survey performs geophysical surveys and site surveys in Norwegian waters to identify hazards for offshore drilling. They use seismic data to interpret shallow soils and identify features like shallow gas. An amplitude anomaly workflow in ArcGIS is used to standardize mapping and visualizing interpreted seismic amplitude anomalies from site surveys in a geodatabase. This allows the data to be easily incorporated into reports, presentations, web maps, and 3D visualizations.

- Site 14 is a former Navy petroleum site located at Moffett Field, containing two underground storage tanks that stored gasoline and diesel fuel. - Recent activities include additional sampling from 2008-present that discovered uncharacterized areas of petroleum in groundwater, and a modified air sparge treatment system design was developed to treat this area. - The air sparge system will be installed in November 2010 and is expected to operate for one year, injecting air into wells to increase biodegradation of petroleum constituents in groundwater, followed by monitoring. - After system operation, monitored natural attenuation will be used if needed to ultimately achieve cleanup goals and site closure.

This document describes Geocap Seismic/Oil & Gas for ArcGIS software. It can be used by geoscientists for exploration and field development planning, creating high quality maps, calculating oil and gas volumes, assessing subsurface risk, and input to well planning and production forecasting. The software includes modules for seismic visualization and interpretation, and modeling petrophysical properties to calculate oil and gas volumes initially in place. It integrates seismic data, wells, and interpretations in ArcGIS for geoscience analysis and decision making.

The NYC DEP Feasibility study that takes a look at the current nitrogen removal efforts, where the four waste treatment plants are now in terms of Nitrogen loading reductions and future technologies that have been studied for possible implementation at these plants.

The public meeting discussed proposed changes to water management policy in the Malad and Bear River drainages based on a USGS study. The study analyzed groundwater levels, water budgets, and the connection between groundwater and surface water. It found that groundwater levels have not significantly changed over 40 years and surface water dominates the system. The proposed new policy would allow 10,000 additional acre-feet per year of groundwater withdrawals while continuing monitoring to protect prior water rights and surface flows. There will be a 30-day comment period on the proposed policy.

This document discusses the status and schedule of remediation projects under the Remedial Action Plan/Risk Management Plan at the Oakland Army Base compared to the proposed development phasing plan. It finds that while the remediation schedule has minimal conflicts currently, full characterization of existing contamination has not been completed and accounting for all categorical projects and footnotes would reveal significant conflicts. Coordination between remediation and development is needed to meet deadlines given the extent of remaining work and uncertainties, including potential impacts of sea level rise on remediation.

The document summarizes updates from the EPA on the regional groundwater and vapor intrusion investigation at NAS Moffett Field. It includes maps of the TCE plume in different aquifers over time and details preliminary findings from recent sampling. Next steps outlined are further delineating hotspots, installing extraction wells, finalizing reports, installing monitoring wells, and conducting modeling to evaluate capture. The document also summarizes comments from stakeholders and a remedy review board on the groundwater feasibility study, calling for more integration of groundwater and vapor intrusion remedies and evaluation of remediation technologies.